Main Bearing Shells Allocation
WARNING: This page is about a different car, the 2024 Audi Q7 and 2023 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.
Allocation of the Crankshaft Bearing Shells for the Cylinder Block
- Bearing shells with the correct thickness are allocated to the cylinder block in the factory. The colored dots on the sides of the bearing shell mark the bearing shell thickness.
- The allocation of the bearing shells to the cylinder block is indicated by a letter for each bearing shell on the right side of the cylinder block as shown.
| Letter on Cylinder Block | Color of Bearing | |
|---|---|---|
| R | = | Red |
| S | = | Black |
| G | = | Yellow |
| U | = | Green |
| B | = | Blue |
Allocation of Crankshaft Bearing Shells for Bearing Cap
- Bearing shells with correct thickness are allocated to bearing cap at factory. The colored dots on the sides of the bearing shell mark the bearing shell thickness.
- The allocation of bearing shells to bearing caps is identified by a letter on the rear crankshaft flange, as shown.
- The letter series begins with crankshaft bearing "1" (belt pulley side) and ends with crankshaft bearing "4" (transmission side).
| Code Letter on the Crankshaft Flange | Color of Bearing | |
|---|---|---|
| R | = | Red |
| S | = | Black |
| G | = | Yellow |
| U | = | Green |
| B | = | Blue |